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TIL An Ubber Driver With A Concealed Handgun Stopped A Mass Shooting In Chicago.

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via reddit.com

nRR7 TIL that the common heart shape (♥) is quite possibly based on a seed that was used for birth control in ancient times.
Oop0L TIL: There was a scheme that offered Beanie Babies in exchange for Firearms in 1998
b9AbZ TIL that sea urchins are devastating the US West Coast's vital kelp forests. Since 2014, their population has increased by 10,000%, and in Northern California, over 90% of the giant bull kelp forests have been destroyed. The "urchin barrens" that are left are killing off important fisheries.
5MKB TIL that in the 60s, most people used just one Alka-Seltzer tablet at a time. They created the popular “Plop, plop, fizz, fizz” jingle to encourage people to use two tablets — sales nearly doubled.
aw6Z0 TIL: A lot of sand is Parrotfish poop. They each poop around 800 lbs of sand a year that ends up making our beaches.